glow plugs + temperature gun ?

[davidkerryedwards]

I've tried it. It does work but the block absorbs so much heat it is
hard to get a clear indication of working/not working. It is a rough
estimate but not ultimately reliable.

Kerry
82 FC35
Denver

--- In WanderlodgeForum@yahoogroups.com, "Bob & Carol Howald`"
wrote:
>
> Can you get a basic clue as to weather or not the plugs are working
by
> holding the glow plug switch and having someone shoot them with a
temp.
> gun? Bob 93pt IL.
>